Coal-screen.



PATENTED JULY 7, 1908.

F. S. CONVERSE.

GOAL SCREEN.

APPLIOATION FILED AUG. e. 1906.

2 SHEETS-SHEET 1.

avwenlroz PATENTED JULY l, 1908.

F. S. CONVERSE.

COAL SCREEN.

APPLICATION FILED AUG. s, 1900.

2 SHEETS-SHEET 2.

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' A T 701cm? 1 PV/TNESSES:

FREDERIO S. CONVERSE, OF LYONS, NEW YORK.

COAL-SCREEN.

Specification of Letters Patent.

Patented July 7, 1908.

Application filed August 6, 1906. Serial No. 329,363.

To all whom it may concern:

Be it known that I, Fnnmemo S. CoNvnnsE, a citizen of the United States,residing at Lyons, in the county of Wayne and State of New York, haveinvented. certain new and useful Improvements in Coal Screens, of whichthe following is a specification.

This invention relates to improvements in screens, such as are used forscreening coal, sand, or gravel, either on the ground or on a car orwagon, commonly called a car or yard screen.

The object of my invention is to provide a screen which may beadjustably supported on the ground or attached to the side of a car orwagon at any desired pitch or inclination, to enable the coal, sand orgravel to be readily sifted therefrom; and further, to provide a screenwith an adjustable and movable combination baseboard and hopper tofacilitate the screening of coal and other like sub stances, all ashereinafter more fully described, and as shown in the accompanyingdrawings, wherein- Figure 1 is a perspective view of the screen completereadyfor use as a yard screen. Fig. 2 is a similar view, showing thescreen attached to the side of a portion of a coal car in position forscreening coal from a car. Fig. 3 is a perspective viewvof a cornerportion of the body of the screen, and the adjustable movable baseboardand hopper secured thereto. Fig. 4, is a transverse sectional view ofthe screen, and Fig. 5, is a longitudinal sectional view of the samewith the base board shown in the hopper position in full lines and inthe supporting position in dotted lines.

Similar letters and figures refer to like parts throughout differentviews of the drawmgs.

This device consists principally of the longitudinal body A, the adjustable and movable combination baseboard and hopper, adjustable crutchsupport C, and the removable screen 3.

The rectangular body of the screen A, and the transverse board 26 whichforms the baseboard of the screen as well as the front of the hopperthereof are preferably made of wood. The transverse cross-pieces 4 andthe inner surface of the transverse board 26 are preferably covered withsheet metal to insure durability from the rough usa 'e to which such adevice is subjected. AlI the other parts of the device are preferablymade of metal. Still the same may be made in any size, form, andmaterial as desired. The body A comprises the bottom 1, side walls 2,transverse cross-pieces 4 which are secured bolted or otherwisepermanently fastened to the under edges of said walls at either end asat 66 in such a manner as to preserve the contour of the screen.

In the bottom 1 of the frame work of the screen and between the sidewalls 2, and the transverse cross-pieces 4 thereof I secure longitudinaland transverse cleats 5. Between said cleats and the under edges of saidside walls I fasten longitudinal metal plates 30 which project inwardlysuflicient to permit the screen 3 to rest thereon by lapping saidplates. This screen 3 I construct by socurely riveting thereon at 27metal binding around its outer edges and on either side as best seen inFi 2.

To effective ly secure the locking of the screen proper in the bottom ofthe framework and to prevent said screen from working ahead, I upset theedge of the metal covering on the inner edge of the transversecross-pieces 4. as at 31 and pivot on the inner sides of said side walls2 clamps 29 spaced at proper distances apart. These clamps are roundedat their outer ends and are adapted to clamp the screen firmly to the.plate 30 of the frame work as best seen in Fig. 2. As the upper end ofthe screen in Fig. 1 becomes the lower end of the screen in Fig. 2 whenthe screen itself is reversed end for end these clamps all'have to bereversed accordingly, as the tendency of the screen is to work downwardwhen the coal or other substances are thrown thereon. It is thereforeobvious that when the screen wire fabric wears out or it is desirable toreplace the same for any reason, for instance for different kinds ofcoal, it will not be necessary to purchase a new frame work, as the wornscreen or the one which it is desired to be removed may be taken oil,simply throwing up the clamps 29 and replacing the screen by new oranother wire fabric of a different mesh and the clamps again throwndown.

On the outside of the side walls 2 near the inner end of the screen Ipivot the straps 7 at 10. To the outer ends of these straps 7 as at 10 Ipivot the angle plates 9 which are of themselves fastened to thetransverse baseboard 26. 011 the inside of said adjustable and movablebase-board 26 I hinge the adj ustable lateral wings 12 which form theside walls of the hopper in connection with the transverse board 26 asbest seen in Fig. 2: thus making a sufiicient transverse dischargeopening for handling coal or other like substances as desired. On thebottom of this end of the screen and directly beneath the side Walls andrunning longitudinally therewith and on the upper edges of the sidewalls 2 near their ends are strap eyes 15 and 13 respectively, which areadapted to be engaged with the strap eyes 16 on the outer face of theboard 26 by means of the pins 24 which pins are held in place bysuitable split keys as will be readily understood. Beneath said strapeyes 15 are secured angle irons 14 which are suitably adapted to beengaged with the upper edge of the side of the car D or with the upperedge of the side of a wagon, by hooking over the same, while permittingthe screen to be adjusted to any desired inclination.

21 is a leg provided with a point 25 and several spaced holes 22, and 19are diverging straps pivoted at 20 to the cleats 5 near the upper endsof the screen and provided with bo ts and nuts 23 adapted to take intosaid spaced holes 22 to lengthen and shorten the support 0 for thepurpose of elevating and lowering the screen to any desired pitch orinclination to facilitate the screening of coal or other likesubstances.

Assuming the screen to be in the position shown in Fig. 2 and it isdesired to use the same to screen coal, sand, gravel or other likesubstances on the ground, the transverse hopper is released from itsposition on the top of the edges of the side walls 2 of the frame of thescreen by removing the pins 24 from the strap eyes 13 and 16respectively, and the wings 12 (which are held open and in position byspringing the same over the nuts 6) are swung inward on their hinges andagainst the board 26 of the hopper, then the hopper is swung on thepivots 10 and 10 outward and downward and inward over and under theinner end of the screen which brings the strap eyes 15 and 16 directlyopposite each other thereby permitting the pin 24 to be inserted andlocked with a split key as best seen in Fig. 3 when the hopper becomesthe base-board of the screen. The wings 12 are held in place andprevented from swinging outward by coming in contact with the angleirons 14 as best seen in Fig. 1.

When it is desired to use the device as a yard screen, the part 26 actsas a base board or support for the screen as shown in Fig. 1. But whenit is desired to use the screen as a car or wagon screen, the positionof the body of the screen as well as all of its parts is reversed, thatis, the support or base board 26, is swung around and over the end ofthe screen and fastened on top thereof as at 13,

Fig. 2, while the lower end of the screen Fig. 1, is raised and becomesthe upper end of the on the pivots 20.

screen as shown in Fig. 2, and the crutch support C swung against thecar as shown in the drawings.

The pitch of the screen is adjusted by moving the crutch support Cinward or outward In case the elevation of the outer end of the screenis found to be too high or too low the difficulty is remedied orovercome by removing the bolts 23 from the spaced holes 22 and slidingthe support leg 21 upward or downward as the case may be and the bolts23 re-inserted in their proper spaced holes 22 and the crutch supportagain swung into position and the screen given its desired pitch orinclination for screening purposes.

N ow, when it is desired to screen coal, sand, gravel or other likesubstances from a car or wagon, the base board 26 is released from inunder the screen by removing the pins 24 and swinging the baseboard onthe pivots 10 and 10 outward and upward and inward over the end of thescreen which brings the strap eyes 15 and 16 respectively on the topedges of the side walls 2 of the frame of the screen and directlyopposite each other when the pins 24 are inserted and fastened with thesplit keys, then the wings 12 are spread apart and swung over the nuts66 which hold the wings open and in position to form the hopper as bestseen in Fig. 2. The screen is then placed in position on a car or wagonby hooking the angle irons 14 over the top edge thereof and swinging thecrutch support 0 inward and against the side of the car or wagon, theweight of the screen as so hung with the angle irons 14 being sufficientto press the point 25 of the leg 21 firmly and solidly against the sideof the wagon or car while the pitch or inclination of the screen isdetermined in the same manner as hereinbefore described. It thereforefollows that with my improvement when coal or the like is thrown on thescreen in the position of Fig. 1 the same will traverse nearly theentire length of the screen and the dust and fine fragments of the coalor the like will readily separate itself from that which is desired; itis also the case when the same is thrown in to the discharge transverseopening of the hopper in the position of Fig. 2.

What I claim as my invention and desire to secure by Letters Patentis 1. A coal screen comprising a supporting frame having an openingtherein, a frame car rying a screen arranged in said opening, dogspivoted to the sides of the supporting frame to engage and secure thescreen frame therein, a base board pivoted at one end of the supportingframe and adapted to act as a support or as a hopper.

2. The combination with a coal screen, of a base board pivotallyconnected at one end thereof, lateral wings hinged to said base board,said base board adapted to form a support for one end of the screen, orwhen the screen is reversed, to form in combination with the lateralwings, a hopper.

3. The combination with a coal screen, of connecting bars pivoted to thesides thereof, a base board pivotally connected to said bars and adaptedto su port the lower end of the screen, and lateral wings hinged to thebase board adapted to rest upon the sides of the In testimony whereof IaHiX my signature in presence of two witnesses.

FREDERIO S. CONVERSE.

Witnesses: I

ALioE HORRIGAN, MARY E. VVnrrMAN.

